diff --git a/src/CPUSensor.cpp b/src/CPUSensor.cpp
index 078d790..6154b6f 100644
--- a/src/CPUSensor.cpp
+++ b/src/CPUSensor.cpp
@@ -84,7 +84,7 @@
             association = objectServer.add_interface(interfacePath,
                                                      association::interface);
 
-            setInitialProperties(conn, units);
+            setInitialProperties(units);
         }
     }